package com.gitee.hifong45;

import java.util.List;

public class ExtStr {
    public static int aaa(int num) {
		return ++num;
	}
	
	public static void print(String name) {
		System.out.println(name);
	}
	public static boolean isBlank(String targetStr) {
		return targetStr == null || "".equals(targetStr);
	}
	
	public static void add(List<String> list) {
		// list.add("龙一一");
        list.add("abcd");
	}
}
